Malini Sheshdari Solutions for Chapter: Electric Current and Its Effects, Exercise 2: STEP UP

Author:Malini Sheshdari

Malini Sheshdari Science Solutions for Exercise - Malini Sheshdari Solutions for Chapter: Electric Current and Its Effects, Exercise 2: STEP UP

Attempt the practice questions on Chapter 14: Electric Current and Its Effects, Exercise 2: STEP UP with hints and solutions to strengthen your understanding. CONCERT Science 7 solutions are prepared by Experienced Embibe Experts.

Questions from Malini Sheshdari Solutions for Chapter: Electric Current and Its Effects, Exercise 2: STEP UP with Hints & Solutions

HARD
7th CBSE
IMPORTANT

The filament of a bulb connected in a circuit is broken. Which of the following statements is true?

EASY
7th CBSE
IMPORTANT

The filament of a bulb connected to a circuit is broken. Is the following statement true?
The filament gets hot but does not produce any light.

EASY
7th CBSE
IMPORTANT

The filament of a bulb connected to a circuit is broken. Is the following statement true?
The ON/OFF switch also breaks.

EASY
7th CBSE
IMPORTANT

The filament of a bulb connected in a circuit is broken. Which of the following statements is true?
Electricity will not flow in the circuit.

HARD
7th CBSE
IMPORTANT

When the current flowing in a circuit is weak, the bulb may not glow. Why?

HARD
7th CBSE
IMPORTANT

When the current flowing in a circuit is weak, the bulb may not glow. What can be added to the circuit to make the bulb glow?

HARD
7th CBSE
IMPORTANT

Study this picture of a simple electromagnet and answer the question. 
What would happen if the direction of electric current were reversed?
Question Image

HARD
7th CBSE
IMPORTANT

How would you identify the poles of the electromagnet using a light bar magnet?